CN216977351U

CN216977351U - Double-circulation advection soaking drying tunnel

Info

Publication number: CN216977351U
Application number: CN202123447629.5U
Authority: CN
Inventors: 李先俊; 张宏远
Original assignee: Huangshan Shenge Electronic Technology Co ltd
Current assignee: Huangshan Shenge Electronic Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-15
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a double-circulation advection soaking drying tunnel, which comprises a shell; the housing has an internal cavity; the inner cavity comprises a drying cavity; a fan is arranged in the inner cavity; a heating plate for heating air sent by the fan is arranged in the drying cavity; the inner cavity further comprises a backflow channel; an air circulation path is formed among the fan, the drying cavity and the return channel; and a plurality of laminar flow plates are arranged in the backflow channel. Through air circulation, the hot gas after drying is sent into the drying chamber again through the fan, and when the hot plate heated the air, it reduced to consume the electric quantity, realized thermal recycle, reduced use cost, the energy saving.

Description

Double-circulation advection soaking drying tunnel

Technical Field

The utility model relates to the technical field of drying equipment, in particular to a double-circulation advection soaking drying tunnel.

Background

Drying equipment is often needed in various workpiece production lines. The existing drying equipment is complex in structure and difficult to be used for drying operation when workpieces are conveyed on a conveying belt; or simple structure, steam directly discharges after the stoving, perhaps adopts and carries out simple heat recovery with the water heat transfer, and heat utilization is lower. Based on the technical problem, the utility model aims to solve how to design the double-circulation advective soaking drying tunnel with simple structure and high heat utilization rate.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the double-circulation advection soaking drying tunnel with simple structure and high heat utilization rate.

The utility model solves the technical problems through the following technical means:

the double-circulation advection soaking drying tunnel comprises a shell; the housing has an interior cavity; the inner cavity comprises a drying cavity; a fan is arranged in the inner cavity; the air inlet end of the fan is communicated with the atmosphere outside the shell, and the air outlet end of the fan is communicated with the drying cavity; a heating plate for heating air sent by the fan is arranged in the drying cavity;

the inner cavity further comprises a backflow channel; one end of the backflow channel is communicated with the drying cavity, and the other end of the backflow channel is communicated with the air inlet end of the fan; an air circulation path is formed among the fan, the drying cavity and the return channel; a plurality of laminar flow plates are arranged in the backflow channel; the laminar flow plate is in a strip plate shape and is arranged in parallel with the flowing direction of air in the backflow channel.

As an improvement of the technical scheme, the double-circulation advection soaking drying tunnel is characterized in that a partition plate is arranged in the inner cavity; the partition plate is vertically arranged; the inner cavity is divided into a drying cavity and a backflow channel by the partition plate; the fan is arranged at the top of the drying cavity, the air inlet end of the fan extends to the outside of the shell, and the air outlet end of the fan is positioned in the drying cavity; the heating plate is positioned right below the air outlet end of the fan; a high-temperature area for drying workpieces is arranged in the drying cavity; the high-temperature area is positioned right below the heating plate; the bottom end of the drying cavity is communicated with the bottom end of the backflow channel; the top end of the backflow channel is communicated with the air inlet end of the fan.

As an improvement of the technical scheme, the laminar flow plate of the double-circulation advection soaking drying channel is a heat insulation plate.

As an improvement of the technical scheme, the surface of the laminar flow plate is sprayed with heat insulation paint in the double-circulation advection soaking drying channel.

The utility model has the advantages that: through air circulation, the dried hot air is sent into the drying chamber again through the fan, when the heating plate heats the air, the consumed electric quantity is reduced, the recycling of heat is realized, the use cost is reduced, and the energy is saved; the laminar flow plate is arranged in the backflow channel, so that on one hand, the laminar flow plate plays a role in guiding air flow, the backflow amount of air from the backflow channel is increased, and the dispersion amount is reduced; more importantly, the laminar flow plate is arranged, so that the air in the backflow channel is divided into a plurality of channels from inside to outside, and due to the blocking effect of the laminar flow plate, the heat loss of the air far away from the inner wall of the shell is lower, the heat loss in the air backflow process is greatly reduced, and the heat reuse rate is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the double-circulation advection soaking drying tunnel of the present invention.

FIG. 2 is a schematic view showing the air flow direction in the double-circulation advection soaking drying tunnel of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1, referring to the drawings, a dual cycle advection soaking drying tunnel, comprising a housing 1; the housing 1 has an inner cavity 11; inner cavity 11 comprises drying cavity 111; a fan 12 is arranged in the inner cavity 11; the air inlet end of the fan 12 is communicated with the atmosphere outside the shell 1, and the air outlet end is communicated with the drying cavity 111; a heating plate 13 for heating air sent by the fan 12 is arranged in the drying cavity 111;

the inner cavity 11 further comprises a return channel 112; one end of the return channel 112 is communicated with the drying cavity 111, and the other end is communicated with the air inlet end of the fan 12; an air circulation path is formed among the fan 12, the drying cavity 111 and the return channel 112; a plurality of laminar flow plates 1121 are arranged in the return channel 112; the laminar flow plate 1121 is a strip-shaped plate and is arranged in parallel to the flow direction of the air in the return channel 112;

when a workpiece is dried, the fan 12 works to send outside air into the drying cavity 111, the heating plate 13 in the drying cavity 111 heats the air sent by the fan 12, the heating plate 13 adopts an electric heating plate, the heated air flows to the workpiece to dry the workpiece, then the air continuously flows into the backflow channel 112, flows to the air inlet end of the fan 12 through the backflow channel 112, and is sent into the drying cavity 111 again through the fan 12 to form air circulation;

through air circulation, the dried hot air is sent into the drying chamber 111 again through the fan 12, when the air is heated by the heating plate 13, the consumed electric quantity is reduced, the recycling of heat is realized, the use cost is reduced, and the energy is saved; a laminar flow plate 1121 is arranged in the backflow channel 112, and on one hand, the laminar flow plate plays a role in guiding air flow, so that the backflow amount of air from the backflow channel 112 is increased, and the dispersion amount is reduced; more importantly, the laminar flow plate 1121 divides the air in the backflow channel 112 into a plurality of channels from inside to outside, and due to the blocking effect of the laminar flow plate 1121, the farther the air is from the inner wall of the housing 1, the lower the heat dissipation is, the heat dissipation in the air backflow process is greatly reduced, and the heat recycling rate is improved.

As an improvement of the above technical solution, a partition plate 113 is arranged in the inner cavity 11; the partition 113 is vertically arranged; the partition board 113 divides the inner cavity 11 into a drying cavity 111 and a return channel 112; the fan 12 is arranged at the top of the drying cavity 111, an air inlet end of the fan extends into the outer part of the shell 1, and an air outlet end of the fan is positioned in the drying cavity 111; the heating plate 13 is positioned right below the air outlet end of the fan 12; a high-temperature zone 1111 for drying workpieces is arranged in the drying cavity 111; the high temperature zone 1111 is located right below the heating plate 13; the bottom end of the drying cavity 111 is communicated with the bottom end of the return channel 112; the top end of the return channel 112 is communicated with the air inlet end of the fan 12;

the fan 12 sends air into the drying cavity 111 from the top of the drying cavity 111, the air flows downwards, firstly, the air is heated by the heating plate 13, then the air continuously flows downwards to the high temperature region, the workpiece is dried by the high temperature air in the high temperature region, then the air enters the return channel through the communication part between the bottom end of the drying cavity 111 and the return channel 112, rises in the return channel, and is sent into the drying cavity 111 again through the fan 12 to the air inlet end of the fan 12, and circulation is formed.

As an improvement of the above technical solution, the laminar flow plate 1121 is a heat insulation plate;

as an improvement of the above technical solution, the surface of the laminar flow plate 1121 is sprayed with a thermal insulation paint;

the laminar flow plate 1121 adopts a heat insulation plate, such as a heat insulation rubber plate and a plastic plate, so that the laminar flow heat insulation effect is improved, the heat loss is reduced, the heat insulation paint also has the heat insulation effect, and the heat utilization rate is improved.

Referring to fig. 1, the double-circulation advection soaking drying tunnel of the present invention is mainly applied to the drying process of the production line, and is directly placed on the conveyor belt 2; a feed inlet 14 and a discharge outlet (not shown in the figure) are respectively arranged at the front side and the rear side of the shell 1 along the conveying direction of the conveying belt 2; the return channels 112 are positioned on two sides between the feed inlet 14 and the discharge outlet; the feed inlet 14 and the discharge outlet are both provided with shielding curtains 141, so that the air loss from the feed inlet 14 and the discharge outlet is reduced; the shielding curtain 141 is made of heat-resistant flexible material, so that the workpiece can pass through smoothly.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The double-circulation advection soaking drying tunnel comprises a shell (1); the housing (1) has an inner cavity (11); the inner cavity (11) comprises a drying cavity (111); a fan (12) is arranged in the inner cavity (11); the air inlet end of the fan (12) is communicated with the atmosphere outside the shell (1), and the air outlet end is communicated with the drying cavity (111); a heating plate (13) for heating air sent by the fan (12) is arranged in the drying cavity (111); the method is characterized in that:

the inner cavity (11) further comprises a return channel (112); one end of the return channel (112) is communicated with the drying cavity (111), and the other end of the return channel is communicated with the air inlet end of the fan (12); an air circulation path is formed among the fan (12), the drying cavity (111) and the return channel (112); a plurality of laminar flow plates (1121) are arranged in the return channel (112); the laminar flow plate (1121) is in the shape of a strip plate and is arranged in parallel to the flowing direction of air in the backflow channel (112).

2. The double-circulation advective soaking drying tunnel according to claim 1, characterized in that: a partition plate (113) is arranged in the inner cavity (11); the partition plate (113) is vertically arranged; the inner cavity (11) is divided into a drying cavity (111) and a return channel (112) by the partition plate (113); the fan (12) is arranged at the top of the drying cavity (111), the air inlet end of the fan extends into the outer part of the shell (1), and the air outlet end of the fan is positioned in the drying cavity (111); the heating plate (13) is positioned right below the air outlet end of the fan (12); a high-temperature zone (1111) for drying workpieces is arranged in the drying cavity (111); the high-temperature zone (1111) is positioned right below the heating plate (13); the bottom end of the drying cavity (111) is communicated with the bottom end of the return channel (112); the top end of the backflow channel (112) is communicated with the air inlet end of the fan (12).

3. The dual cycle advective soaking drying tunnel of claim 1, wherein: the laminar flow plate (1121) is a heat insulation plate.

4. The dual cycle advective soaking drying tunnel of claim 1, wherein: and thermal insulation paint is sprayed on the surface of the laminar flow plate (1121).